CN201298811Y - DC chopped-wave stable-voltage power supplier - Google Patents
DC chopped-wave stable-voltage power supplier Download PDFInfo
- Publication number
- CN201298811Y CN201298811Y CNU200820176982XU CN200820176982U CN201298811Y CN 201298811 Y CN201298811 Y CN 201298811Y CN U200820176982X U CNU200820176982X U CN U200820176982XU CN 200820176982 U CN200820176982 U CN 200820176982U CN 201298811 Y CN201298811 Y CN 201298811Y
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- controllable silicon
- copped wave
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Abstract
The utility model relates to a DC chopped-wave stable-voltage power supplier which comprises a case body, a cooling blower, an input-voltage sample, an output-voltage sample, a failure controllable silicon, an input controllable silicon, an input terminal, a resistor terminator, a chopped-wave power tube, a current check hall, a heat radiator, an input capacitor, a diode module, a voltage-equalizing and charging resistor, an output capacitor and an output terminator. The main loop of the utility model uses an overlapped-type mother board structure, reduces wire distributing electric induction and interference to the maximum extent, reduces the di/dt and the du/dt of a power device, guarantees the reliable work of the power device, and solves the problems of the long wire line of the electric transmission and supplying system, high net-voltage fluctuation and insufficient traction force of the heavy-loaded vehicle climbing a slope at a high speed.
Description
Technical field
The utility model relates to a kind of DC chopped-wave stabilized voltage supply device, is applicable to colliery and other mine stringing formula electric locomotive power supply systems.
Background technology
Along with the development of economic society, the production capacity of barghs such as colliery, metallurgy is improving gradually, and freight volume increases year by year, and originally She Ji supply network can not adapt to the demand of social economy's production development.If will change supply network, high input will be arranged, and will stop production, production is impacted.This device is installed in the electric input side that is subjected to of transportation locomotive.Along with the development of power electronic technology, high-frequency can be turn-offed, and powerful power electronic product moves to maturity, in conjunction with computer intelligence control, adopt the DC chopped-wave technology to improve power supply quality, improve the pulling figure of transportation locomotive, it is little to have investment, and instant effect does not influence the advantage of production.
Summary of the invention
The purpose of this utility model is to be achieved through the following technical solutions:
A kind of DC chopped-wave stabilized voltage supply device, be by casing, cooling blower, input voltage sampling, output voltage sampling, fault controllable silicon, input controllable silicon, input terminal, reactor terminal, copped wave power tube, current detecting suddenly ear, radiator, input capacitance, diode (led) module, all pressure and charging resistor, output capacitance, lead-out terminal constitute.Major loop adopts box-type eclipsed form motherboard structure, and power device is contained on the casing inner radiator, and the radiator back is equipped with cooling blower, casing left side lead-out terminal, and the right side is that the power supply input is anodal; Power supply is powered into through input terminal, by charging resistor voltage is added on input capacitance and the copped wave power tube earlier, the input controllable silicon connects all presses and charging resistor, direct current is directly supplied with electric capacity and copped wave power tube IGBT, simultaneously send drive signal by control board, drive the copped wave power tube, output is by the voltage sampling detection and feed back to computer, computer is according to the value of feedback of input voltage sampling and output voltage sampling, the duty ratio of regulating the copped wave power tube; External reactor is connected on the reactor terminal, and by the current detecting electric current crossed of ear control flows suddenly, the output of reactor terminal is connected on the lead-out terminal, controllable silicon is attempted by on the input power supply, two-way is arranged in the diode (led) module, and one the tunnel is serially connected in the charge circuit, another road and on the both positive and negative polarity of copped wave unit.
The function of each power device of the utility model and effect:
1, casing: adopt the compacting of 3mm steel plate, be welded, guaranteed the robustness of whole device.
2, cooling blower: device adopts air blast cooling, takes away the heat that the power component loss produces by blower fan, guarantees the element operate as normal.
3, input voltage sampling: detect input voltage and carry out voltage-regulation for control board.
4, output voltage sampling: detect output voltage, control board to the timely adjustment of power tube duty ratio, guarantees output voltage stabilization according to load variations.
5, fault controllable silicon: when system breaks down, if output voltage can not be controlled, control board will be exported triggering signal, and this controllable silicon conducting makes the input side switch trip, prevent that fault from enlarging.
6, input controllable silicon: charge to input capacitance through charging resistor during system start-up, when voltage is raised to the working value of control board, control board work, when system will move, send trigger impulse, controllable silicon work by control board, the short circuit charging resistor provides electric current through controllable silicon for system.
7, input terminal: the feed power supply that is used for connecing this chopper system.
8, reactor terminal: connect the input of external reactor, this terminal has four, connects four external reactors respectively.
9, main power component: constitute by 4 two unit IGBT.
10, Hall sensor: be used to detect output current, control the protection of chopper work and overcurrent fault.
11, radiator: power device all is directly installed on the radiator face, and coat heat-conducting silicone grease at contact-making surface, the loss heat that the guaranteed output device produces is transmitted on the radiator, radiator adopts the high heat-conducting type of fin type aluminium alloy, blower fan is installed in fin top, adopt the air cooling of pumping board formula, air is entered by the fin bottom, extracts out from the top through whole fin, and the heat that the guaranteed output device produces is taken away at any time, the fin outside is pressed on the fin by sealing plate by the outside, guarantee cooling air through whole fin, from following air intake, above air-out, also add division board together between air intake and the air-out, the hot-air of extraction is not directly sucked from air outlet.
12, input capacitance: the instantaneous power of copped wave unit is provided by electric capacity.
13, diode (led) module: utilize its unilateal conduction to prevent laod reversal voltage disturbance copped wave unit operate as normal.
14, all press and charging resistor: this device input capacitance is by three tunnel series connection, the series connection of output two-way, and grading resistor and at the electric capacity two ends, compensation is owing to the voltage that capacitor leakage current causes is unbalanced.Charging resistor be used for restraint device when starting to the charging current of internal capacitance.
15, output capacitance: utilize its filter action that copped wave afterpulse voltage is smoothly used for load for direct current.
16, lead-out terminal: lead-out terminal after the copped wave, load feed end.
The advantage of this device:
1, major loop adopts the eclipsed form motherboard structure, has reduced wiring inductance and interference to greatest extent, has reduced di/dt, the du/dt of power device, has guaranteed the reliably working of power device.
2, whole device is installed on the elastic buffer, has absorbed the vibration of all directions in the vehicle operating process, has guaranteed the fastening of device internal power device and connector.
3, the inner connection all used copper coin and tining, utilizes a property of prolonging of copper bar to absorb owing to expand with heat and contract with cold to the stress of power tube, reduced to greatest extent simultaneously owing to connect the heating that resistance causes.
4, external reactor structure makes the apparatus structure compactness, constitutes flexibly, requires adaptive capacity strong according to different capacity, and secondary development period is short.
The beneficial effect of this device
1, it is big to have solved the supply network voltage fluctuation, the problem that characteristic is soft.
2, adopt the HF switch technology, the reliability height, the characteristics that adaptive capacity is strong have reduced investment to the transformation of existing equipment, and instant effect is with a wide range of applications.
Description of drawings
Fig. 1 is the utility model schematic diagram.
Embodiment
The DC chopped-wave stabilized voltage supply device adopts box typed structure, the air cooling mode, and power device is directly installed on the casing inner radiator, and the loss heat that power device produces is taken away by blower fan in the radiator back.Power device adopts the IGBT of the CM400DY-34A of MIT model, adopts peak value type chopping way, is controlled by computer intelligence, 4 road parallel operations are arranged, every road in one-period, work 90 the degree, when the first via is worked, control its IGBT conducting, electric current rises, and energy is stored in the inductance, detects its electric current by ear suddenly simultaneously, when electric current reaches set point, control IGBT turn-offs, and next road conducting is spent in the cycle work of every road once 360.Be stored in the filter action of energy by output capacitance in the inductance, become level and smooth stable DC electricity, the supply capability locomotive uses.The capacity of this device reaches 350KVA, and frequency reaches 8KHZ.Power tube is driven by the computer intelligence control board, the PWM switching pulse that control board produces, variation according to input voltage and output loading, the timely adjustment duty ratio, on-off action by the driving power pipe, output produces the voltage signal that pulsewidth changes synchronously, and through the filter action of electric capacity, output voltage stabilization is in set point.Major loop adopts unique eclipsed form motherboard structure, and casing left side 16 is a lead-out terminal, and right side 7 is anodal for the power supply input, and input negative pole and right side output negative pole are shared.The DC power supply input and output are arranged vertically, these all be big limit reduced wiring inductance and interference, guaranteed the reliability of whole device.Its course of work is: when power supply after input terminal 7 power supply is come in, by charging resistor 14 voltage is added on input capacitance 12 and the copped wave power tube 9 earlier, this moment, control circuit had, when the needs running gear, control board sends signal, open dc switch---input controllable silicon 6 connects charging resistor 14, this moment, direct current was directly supplied with electric capacity 12 and main power device IGBT, simultaneously send drive signal by control board, drive main power device 9, output is by voltage sampling 4 detections and feed back to computer.Computer is according to the value of feedback of input voltage sampling 3 and output voltage sampling 4, and the duty ratio of timely adjustment copped wave power tube 9 makes output voltage stabilization on set point.Power component all is installed on the radiator 11, and the loss heat that produces during its work is taken away by blower fan 2.Instantaneous energy during power tube work is provided by input capacitance 12.External reactor is connected on the reactor terminal 8, and by current detecting ear 10 electric current that comes control flows to cross suddenly, reactor output is connected on the lead-out terminal 16, and the energy of storing during its copped wave through the filter action of output capacitance 15, becomes direct current and uses for load.Fault controllable silicon 5 is attempted by on the input power supply, when the copped wave pipe damages or other reason when causing output voltage uncontrolled, sends triggering signal by computer, 5 conductings of fault controllable silicon, force the input switch tripping operation, prevent that fault from enlarging, in order to avoid the power supply load is impacted.In the diode (led) module 13 two-way is arranged, the one tunnel is serially connected in the charge circuit, and the reverse voltage when preventing the copped wave cell operation is got back to electrical network, and another road and on the both positive and negative polarity of copped wave unit provides discharge loop to the circuit stray inductance.
Claims (1)
1, a kind of DC chopped-wave stabilized voltage supply device, be by casing (1), cooling blower (2), input voltage sampling (3), output voltage sampling (4), fault controllable silicon (5), input controllable silicon (6), input terminal (7), reactor terminal (8), copped wave power tube (9), current detecting is ear (10) suddenly, radiator (11), input capacitance (12), diode (led) module (13), all press and charging resistor (14), output capacitance (15), lead-out terminal (16) constitutes, it is characterized in that major loop adopts box-type eclipsed form motherboard structure, power device is contained on the casing inner radiator (11), radiator (11) back is equipped with cooling blower (2), the casing left side is lead-out terminal (16), and the right side is power input terminal (7); Power supply is come in through input terminal (7) power supply, earlier by all pressure and charging resistor (14) are added to voltage on input capacitance (12) and the copped wave power tube (9), control board sends signal, open dc switch---input controllable silicon (6) connects all presses and charging resistor (14), direct current is directly supplied with electric capacity (12) and copped wave power tube (9), simultaneously send drive signal by control board, drive copped wave power tube (9), output voltage sampling (4) detects and feeds back to computer, computer is according to the value of feedback of input voltage sampling (3) and output voltage sampling (4), the duty ratio of regulating copped wave power tube (9); External reactor is connected on the reactor terminal (8), and by current detecting ear (10) electric current that comes control flows to cross suddenly, reactor output is connected on the lead-out terminal (16), and controllable silicon (5) is attempted by on the input power supply; Diode (led) module has two-way in (13), and one the tunnel is serially connected in the charge circuit, another road and on the both positive and negative polarity of copped wave unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200820176982XU CN201298811Y (en) | 2008-11-21 | 2008-11-21 | DC chopped-wave stable-voltage power supplier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200820176982XU CN201298811Y (en) | 2008-11-21 | 2008-11-21 | DC chopped-wave stable-voltage power supplier |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201298811Y true CN201298811Y (en) | 2009-08-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU200820176982XU Expired - Lifetime CN201298811Y (en) | 2008-11-21 | 2008-11-21 | DC chopped-wave stable-voltage power supplier |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201298811Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102611331A (en) * | 2012-03-21 | 2012-07-25 | 江苏晟楠电子科技有限公司 | High-power-density onboard variable voltage rectifier |
| CN103440017A (en) * | 2013-08-21 | 2013-12-11 | 九阳股份有限公司 | Small power control method of food processor |
-
2008
- 2008-11-21 CN CNU200820176982XU patent/CN201298811Y/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102611331A (en) * | 2012-03-21 | 2012-07-25 | 江苏晟楠电子科技有限公司 | High-power-density onboard variable voltage rectifier |
| CN103440017A (en) * | 2013-08-21 | 2013-12-11 | 九阳股份有限公司 | Small power control method of food processor |
| CN103440017B (en) * | 2013-08-21 | 2016-04-06 | 九阳股份有限公司 | A kind of small power control method of food processor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: CNR LANZHOU LOCOMOTIVE CO., LTD. Free format text: FORMER NAME: LANZHOU JINNIU TRAMROAD TRAFFIC ACCOUTREMENT CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 730050 Wuwei Road, Qilihe District, Gansu, No. 63, No. Patentee after: CNR Lanzhou Locomotive Co., Ltd. Address before: 730050 Wuwei Road, Qilihe District, Gansu, No. 63, No. Patentee before: Lanzhou Jinniu Railway Transportation Equipment Co., Ltd. |
|
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 730050 Wuwei Road, Qilihe District, Gansu, No. 63, No. Patentee after: CNR LANZHOU LOCOMOTIVE CO., LTD. Address before: 730050 Wuwei Road, Qilihe District, Gansu, No. 63, No. Patentee before: CNR Lanzhou Locomotive Co., Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20090826 |